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Finding the Fourth Proportional to 782,263.76, 1,079,524.68 and 424,567.76

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Solution

The fourth proportional to 782,263.76, 1,079,524.68 and 424,567.76 is: 585,903.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,263.76 : 1,079,524.68 = 424,567.76 : x
  2. Step 2: Convert to fraction form
    782,263.76/1,079,524.68 = 424,567.76/x
  3. Step 3: Cross multiply
    782,263.76x = 1,079,524.68 × 424,567.76
  4. Step 4: Simplify right side
    782,263.76x = 458,331,375,252.32
  5. Step 5: Solve for x
    x = 458,331,375,252.32/782,263.76
  6. Step 6: Final answer
    x = 585,903.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.